support get and list server's metadata

Adds support for Nova Server get and list metadata API.

Change-Id: I4e53c6af932537004564371374bb54396f0cc05c

novaclient/tests/unit/fixture_data/servers.py

@@ -205,6 +205,19 @@ class Base(base.Fixture):
             self.requests_mock.delete(self.url(u, 'metadata', 'key1'),
                                       json=self.diagnostic,
                                       headers=self.json_headers)
+        metadata3 = {'meta': {
+            'Server Label': 'Web Head 1'
+        }}
+        self.requests_mock.get(self.url(1234, 'metadata', 'Server Label'),
+                               json=metadata3,
+                               headers=self.json_headers)
+        metadata4 = {'metadata': {
+            'Server Label': 'Web Head 1',
+            'Image Version': '2.1'
+        }}
+        self.requests_mock.get(self.url(1234, 'metadata'),
+                               json=metadata4,
+                               headers=self.json_headers)
 
         get_security_groups = {
             "security_groups": [{

novaclient/tests/unit/v2/test_servers.py

@@ -463,6 +463,23 @@ class ServersTest(utils.FixturedTestCase):
         self.assert_called('PUT', '/servers/1234/metadata/test_key',
                            {'meta': {'test_key': 'test_value'}})
 
+    def test_get_server_meta(self):
+        m = self.cs.servers.get_meta(1234, 'Server Label')
+        self.assert_request_id(m, fakes.FAKE_REQUEST_ID_LIST)
+        self.assert_called('GET', '/servers/1234/metadata/Server%20Label')
+        self.assertEqual(m, {'meta': {
+            'Server Label': 'Web Head 1'
+        }})
+
+    def test_list_server_meta(self):
+        m = self.cs.servers.list_meta(1234)
+        self.assert_request_id(m, fakes.FAKE_REQUEST_ID_LIST)
+        self.assert_called('GET', '/servers/1234/metadata')
+        self.assertEqual(m, {'metadata': {
+            'Server Label': 'Web Head 1',
+            'Image Version': '2.1'
+        }})
+
     def test_find(self):
         server = self.cs.servers.find(name='sample-server')
         self.assert_request_id(server, fakes.FAKE_REQUEST_ID_LIST)

novaclient/v2/servers.py

@@ -2039,6 +2039,26 @@ class ServerManager(base.BootingManagerWithFind):
         return self._update("/servers/%s/metadata/%s" %
                             (base.getid(server), key), body)
 
+    def list_meta(self, server):
+        """
+        Lists all metadata for a server.
+        :param server: The :class:`Server` (or its ID).
+        :returns: A dict of metadata.
+        """
+        resp, body = self.api.client.get("/servers/%s/metadata" %
+                                         base.getid(server))
+        return base.DictWithMeta(body, resp)
+
+    def get_meta(self, server, key):
+        """
+        Shows details for a metadata item, by key, for a server.
+        :param server: The :class:`Server` (or its ID).
+        :param key: metadata key to get
+        """
+        resp, body = self.api.client.get("/servers/%s/metadata/%s" %
+                                         (base.getid(server), key))
+        return base.DictWithMeta(body, resp)
+
     def get_console_output(self, server, length=None):
         """
         Get text console log output from Server.

releasenotes/notes/get-list-metadata-8afcc8f32ad82dda.yaml

@@ -0,0 +1,4 @@
+---
+features:
+  - |
+    Adds supports for Nova Server get and list metadata API.